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Sand in the Wheels: A Dynamic Global-Game Approach

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  • Jakub Steiner

    (Northwestern University)

  • Laurent Mathevet

    (University of Texas at Austin)

Abstract

We study the impact of frictions on the prevalence of systemic crises. Agents privately learn about a fixed payoff parameter, and repeatedly adjust their investments while facing transaction costs in a dynamic global game. The model has a rich structure of externalities: payoffs may depend on the volume of aggregate investment, on the concentration of investment, or on its volatility. We examine how small frictions, including those similar to the Tobin tax, affect the equilibrium. We identify conditions under which frictions discourage harmful behavior without compromising investment volume. The analysis is driven by a robust invariance result: the volume of aggregate investment (measured in a pivotal contingency) is invariant to a large family of frictions.

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Bibliographic Info

Paper provided by Society for Economic Dynamics in its series 2012 Meeting Papers with number 123.

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Date of creation: 2012
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Handle: RePEc:red:sed012:123

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  1. Wendy Carlin & Colin Mayer, 1999. "Finance, Investment and Growth," OFRC Working Papers Series 1999fe09, Oxford Financial Research Centre.
  2. James Tobin, 1978. "A Proposal for International Monetary Reform," Eastern Economic Journal, Eastern Economic Association, vol. 4(3-4), pages 153-159, Jul/Oct.
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  4. Stephen Morris & Bernardo Guimaraes, 2004. "Risk and Wealth in a Model of Self-Fulfilling Currency Attacks," Yale School of Management Working Papers ysm424, Yale School of Management.
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  6. Eugen Kovac & Jakub Steiner, 2008. "Reversibility in Dynamic Coordination Problems," ESE Discussion Papers 183, Edinburgh School of Economics, University of Edinburgh.
  7. Echenique, Federico, 2004. "Extensive-form games and strategic complementarities," Games and Economic Behavior, Elsevier, vol. 46(2), pages 348-364, February.
  8. David M. Frankel & Stephen Morris & Ady Pauzner, 2001. "Equilibrium Selection in Global Games with Strategic Complementarities," Cowles Foundation Discussion Papers 1336, Cowles Foundation for Research in Economics, Yale University.
  9. Dasgupta, Amil, 2007. "Coordination and delay in global games," Journal of Economic Theory, Elsevier, vol. 134(1), pages 195-225, May.
  10. Itay Goldstein & Emre Ozdenoren & Kathy Yuan, 2011. "Learning and Complementarities in Speculative Attacks," Review of Economic Studies, Oxford University Press, vol. 78(1), pages 263-292.
  11. Frankel, David M. & Burdzy, Krzysztof & Pauzner, Ady, 2001. "Fast Equilibrium Selection by Rational Players Living in a Changing World," Staff General Research Papers 11923, Iowa State University, Department of Economics.
  12. Jakub Steiner, 2006. "Coordination in a Mobile World," CERGE-EI Working Papers wp295, The Center for Economic Research and Graduate Education - Economic Institute, Prague.
  13. Fudenberg, Drew & Levine, David K., 1988. "Open-loop and closed-loop equilibria in dynamic games with many players," Journal of Economic Theory, Elsevier, vol. 44(1), pages 1-18, February.
  14. George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2007. "Dynamic Global Games of Regime Change: Learning, Multiplicity, and the Timing of Attacks," Econometrica, Econometric Society, vol. 75(3), pages 711-756, 05.
  15. Xavier Vives, 2009. "Strategic complementarity in multi-stage games," Economic Theory, Springer, vol. 40(1), pages 151-171, July.
  16. Christophe Chamley, 2003. "Dynamic Speculative Attacks," American Economic Review, American Economic Association, vol. 93(3), pages 603-621, June.
  17. Sylvain Chassang, 2010. "Fear of Miscoordination and the Robustness of Cooperation in Dynamic Global Games With Exit," Econometrica, Econometric Society, vol. 78(3), pages 973-1006, 05.
  18. George-Marios Angeletos & Alessandro Pavan, 2007. "Dynamic Global Games of Regime Change: Learning, Multiplicity and Timing of Attacks," Discussion Papers 1497, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
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Cited by:
  1. Eugen Kovac & Jakub Steiner, 2008. "Reversibility in Dynamic Coordination Problems," CERGE-EI Working Papers wp374, The Center for Economic Research and Graduate Education - Economic Institute, Prague.

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